Home / 122,686.78-184,031.98-80,834.89

Finding the Fourth Proportional to 122,686.78, 184,031.98 and 80,834.89

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Solution

The fourth proportional to 122,686.78, 184,031.98 and 80,834.89 is: 121,253.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,686.78 : 184,031.98 = 80,834.89 : x
  2. Step 2: Convert to fraction form
    122,686.78/184,031.98 = 80,834.89/x
  3. Step 3: Cross multiply
    122,686.78x = 184,031.98 × 80,834.89
  4. Step 4: Simplify right side
    122,686.78x = 14,876,203,939.62
  5. Step 5: Solve for x
    x = 14,876,203,939.62/122,686.78
  6. Step 6: Final answer
    x = 121,253.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.